Generally speaking, the achievements made in the process of technology development and new product development should apply for invention patents because of their high technical level. For example, the application of laser technology has been studied, and holographic grating synthetic leather has been developed by laser holography or grating photoetching in Taicheng leather manufacturing. Then, both the leather itself and its manufacturing method should apply for invention patents. Another example: drugs developed by biochemical technology, whether drugs or methods of manufacturing drugs, should apply for invention patents. Another example is that a factory has put forward a design scheme to improve the air compressor, which is feasible, and the effect after implementation will greatly reduce the production cost and improve the performance of the machine, so the scheme can be applied for an invention patent.
The technology applying for a patent for invention can be a pioneering or pioneering invention that brings revolutionary changes to a certain discipline or a certain technical field, or an improved invention that is partially improved and developed on the basis of the existing technology.